Thunderhead Soil?

I am about to leave to go buy my pots and soil for my indoor 400hps Blueberry grow. I have the 3 pack Flora nutes and there are no local grow shops around. Theres only lowes and a local pipe shop. The pipe shop had Thunderhead soil... Has anyone used this before?? Or should i just go buy some organic miracle grow and buy extra peralite and vermiculite?

i would say fuck organic miracle grow. ive used it before and it has crappy drainage among other things

so your suggesting?